<?php
class Mageex_AdvanceSeo_Block_System_Config_Form_Field_WordRangeDes
		extends Mage_Adminhtml_Block_System_Config_Form_Field
{
	protected function _getElementHtml(Varien_Data_Form_Element_Abstract $element)
    {
        $element->setStyle('width:70px;')
            ->setName($element->getName() . '[]');
			
        $value = $element->getValue();
    
        $to = $element->setValue(isset($value) ? $value : 100)->getElementHtml();
        return Mage::helper('adminhtml')->__() . ' ' . $to;
    }			
}